Fauna of the Morrow Group 
193 
1914. Spiriferina transversa. Weller, 111. State Geol. Surv., Mon. I, 
p. 297, pi. 35, fig's. 41-49. 
Chester group: Chester, Illinois. 
A Spiriferina which appears indistinguishable from McChes- 
ney's species from the Chester limestone is fairly abundant in 
all three of the fossiliferous Morrow horizons. Certain of the 
individuals display a more strongly elevated mesial fold than 
is common in this species but the character is not a constant 
one and there seems to be no practicable way of separating 
the Morrow specimens from the Chester forms. 
Horizon and locality. Hale formation: East Mountain, Fay- 
etteville, Arkansas (Stations 136, 137, and 149), Brentwood 
limestone: near Fayetteville, Arkansas (Stations 134, 135, and 
140), Kessler limestone: near Brentwood (Station 144), and 
on East Mountain, Fayetteville (Station 209), Arkansas. Mor- 
row formation: near Ft. Gibson (Station 296), and Choteau 
(Stations 302 and 307), Oklahoma. 
Spiriferina campestris White 
Plate XIII, figures 9-lOa. 
1874. Spirifernia spinosa (?), Derby, Bull. Cornell Univ., (Sci.), vol. 1, 
No. 2, p. 23, pi. 6, figs. 8, 13, 14. 
Coal Measures: Itaituba, Brazil. 
1874. Spiriferina spinosa var. campestris. White, Prelim. Rep. Inv*. Foss., 
p. 21. 
Carboniferous (Coal Measures) : Near Santa Fe, New Mexico; 
Camp Cottonwood, Lincoln County, Nevada. 
1877. Spiriferina octopUcata. White, U. S. Geog. Surv. west of 100th 
Merid., vol. 4, p. 139, pi. 10, figs. 8a-c. 
Carboniferous: Near Santa Fe, New Mexico; Camp Cottonwood, 
, Lincoln County, Nevada. 
1877. Spiriferina (undet. sp.). Meek, U. S. Geol. Expl. 40th Par., vol. 4, 
p. 84, pi. 8, figs. 5~5b. 
Carboniferous limestone: Railroad Canyon, Diamond Mountains, 
Nevada. 
1877. Spiriferina gonionota. Meek, U. S. Geol. Expl. 40th Par., vol. 4, 
p. 85. 
Carboniferous limestone: Railroad Canyon, Diamond Mountains, 
Nevada. 
1884. Spiriferina cristata. Walcott, Mon. U. S. Geol. Surv., No. 8’, 
p. 218, pi. 18, fig. 13. (not fig. 12). 
Lower Carboniferous: Eureka District, Nevada. 
